Whether you're monitoring workplace machinery, installing audio or alarm systems, or handling product noise certification and reduction, the Protmex SPL meter gets the job done. ACCURATE AND SENSITIVE DB METER Highquality AD636 chip, low power consumption, professional measurement. It can respond within 0.5s, and quickly display accurate measurement results. Our sound level meter utilizes an electric condenser microphone to monitor sound levels from 30 to 130 decibels at an accuracy of 1.5 dB with a 0.1 dB resolution. FAST AND SLOW MEASUREMENT The decibel gauge has the function of converting the fast and slow response rates. The fast response rate uses a time constant of 0.125stime for general environmental measurement. The slow response rate uses a 1stime constant, which is used for environmental measurements with relatively large changes in noise levels. Also, have MAX, data hold, and underover, dBSONE unit selection functions. Note Can not keep and generate a report directly from the device. AC WEIGHTING NETWORK SELECTION A weighting model Simulate the characteristics of human hearing, which is suitable for the detection of ambient noise; C weighting mode Actual sound level, which is suitable for the sound pressure analysis of machine motors and machines. This uses to measure the sound level of sound equipment in Work and Life such as factories, workshops, schools, residential, office areas, traffic roads, audio, and other occasions. Also applies to noise engineering, product quality control, health control, and so on. ANTISLIP AND ENERGYSAVING SPL METER The decibel gauge used a composite material injection molding process with an antidrop structure design, power saving, high reliability, and highefficiency circuit, easy to use in multienvironments. The Protmex noise meter with the backlight feature is appropriate for gathering sound data at night. To save power, the backlight auto poweroff function is provided. Protmex 247 SUPPORT PT6708 sound meter complies with IEC651 Type 2 and SI.4 Type2. CE LVE, EMC , RoHS approved. We are engaged to bring quality products to more families and your choice and recognition will always be our greatest support. We will provide 7*24 online friendly support.